GTSPP Data Product Centre| Year & Month(yyyymm) | observing line | Number of observations |
|---|---|---|
| 201003 | PX10 | 126 |
| 201006 | PX10 | 122 |
| 201008 | PX10 | 121 |
| 201009 | PX10 | 121 |
| 201103 | PX10 | 112 |
| 201110 | PX10 | 197 |
| 201003 | PX37 | 77 |
| 201006 | PX37 | 80 |
| 201008 | PX37 | 82 |
| 201009 | PX37 | 78 |
| 201012 | PX37 | 197 |
| 201103 | PX37 | 90 |
| 201104 | PX37 | 202 |
| 201106 | PX37 | 205 |
| 201109 | PX37 | 170 |
| 201004 | PX44 | 90 |
| 201006 | PX44 | 87 |
| 201008 | PX44 | 76 |
| 201009 | PX44 | 87 |
| 201101 | PX44 | 82 |
| 201103 | PX44 | 84 |
| 201104 | PX44 | 80 |
| 201107 | PX44 | 82 |
| 201109 | PX44 | 97 |